CVE-2020-8173: Missing Encryption of Sensitive Data

A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended...

CVE-2020-8236: Improper Authentication

A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the passwordless WebAuthn but not verifying it...

CVE-2020-8183: Plaintext Storage of a Password

A logic error in Nextcloud Server 19.0.0 caused a plaintext storage of the share password when it was given on the initial create API call...

Nextcloud Server Elevation of Privilege Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A security vulnerability exists in Nextcloud Server 19.0.0, which stems from a logic error resulting in an escalation of privileges that allows malicious user...

PT-2021-12724

Name of the Vulnerable Software and Affected Versions: Nextcloud Server versions prior to 19 Description: A wrong check in the software allowed for a denial of service attack when resetting the password for a user. Recommendations: For Nextcloud Server versions prior to 19, update to version 19 o...

PT-2021-12725

Name of the Vulnerable Software and Affected Versions: Nextcloud Server versions prior to 20.0.0 Description: The issue concerns the storage of passwords in a recoverable format, even when external storage is not configured. This affects Nextcloud Server versions prior to 20.0.0. Recommendations:...

PT-2020-20000 · Nextcloud +1 · Nextcloud Server +1

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 18.0.4 Description: A too small set of random characters being used for encryption allowed decryption in a shorter time than intended. Recommendations: For Nextcloud Server version 18.0.4, update to a version that use...

PT-2020-20047 · Nextcloud +1 · Nextcloud Server +1

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 19.0.1 Description: The issue arises from a misconfiguration in Nextcloud Server, where the user is incorrectly led to believe that passwordless WebAuthn also serves as two-factor verification. This misconception occu...

PT-2020-20067 · Nextcloud +1 · Nextcloud Server +1

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 19.0.1 Description: The issue is related to insufficient protection of server-side encryption keys, allowing an attacker to replace these keys. Recommendations: For Nextcloud Server version 19.0.1, update to a version...

PT-2020-20008 · Nextcloud +2 · Nextcloud Server +2

Name of the Vulnerable Software and Affected Versions: Nextcloud Server version 19.0.0 Description: A logic error caused the plaintext storage of the share password when it was given on the initial create API call. Recommendations: For Nextcloud Server version 19.0.0, update to a version that fix...

CVE-2020-8223

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves...

Privilege escalation

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves...

CVE-2020-8223

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves...

CVE-2020-8223: Improper Privilege Management

A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves...

PT-2020-20035

Name of the Vulnerable Software and Affected Versions Nextcloud Server version 19.0.0 Description A logic error in the software caused a privilege escalation, allowing malicious users to reshare with higher permissions than they were assigned. Recommendations For Nextcloud Server version 19.0.0,...

Improper confidentiality protection of server-side encryption keys (NC-SA-2020-040)

Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the public key to decrypt them later on...

Improper integrity protection of server-side encryption keys (NC-SA-2020-041)

Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys...

Denial of Service by requesting to reset a password (NC-SA-2021-003)

A wrong check in Nextcloud Server 19 and prior allowed to perform a denial of service attack when resetting the password for a user...

PT-2020-19985

Name of the Vulnerable Software and Affected Versions Nextcloud Server version 19.0.1 Description A cryptographic issue allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files. This issue does not specify the estimated number of potentially affected devic...

Downgrade encryption scheme and break integrity through known-plaintext attack (NC-SA-2020-039)

A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files...